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Finding the Fourth Proportional to 567,220.66, 782,799.33 and 312,571.78

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Solution

The fourth proportional to 567,220.66, 782,799.33 and 312,571.78 is: 431,368.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,220.66 : 782,799.33 = 312,571.78 : x
  2. Step 2: Convert to fraction form
    567,220.66/782,799.33 = 312,571.78/x
  3. Step 3: Cross multiply
    567,220.66x = 782,799.33 × 312,571.78
  4. Step 4: Simplify right side
    567,220.66x = 244,680,979,960.91
  5. Step 5: Solve for x
    x = 244,680,979,960.91/567,220.66
  6. Step 6: Final answer
    x = 431,368.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.